1.Universal charger for Roomba 400,500 and Scooba series battery 2.With external adaptor as power supply ,110V-240V Universal charger for iRobot Roomba 400,500 and scooba 5900 batteryFit for Irobot Roomba 400 series, 500 series and scooba 5900 vacuum cleanerVoltage:110-240 V( can be used in different Market all over the world) Universal charger for iRobot cleaner battery